Quoting Imre Deak (2018-08-28 12:40:43) > During power domains initialization we acquire power well references for > power wells in the INIT power domain. The rest of power wells - which > BIOS could have left enabled - we can only acquire references as needed > during display HW readout. Thus during initialization these latter power > wells can have a refcount of 0 while still being enabled. To avoid the > false-positive state mismatch error this causes remove the check from > intel_power_domains_init_hw() and rely on the state check in > intel_power_domains_enable() which follows the HW readout.
Missing from above is a quick explanation of how those extraneous powerwells are sanitizied. If we don't do the HW readout (i915.disable_display?) do we not then leave the powerwell active and so complain in a later verify_state()? -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
